Upright drill



UNITED STATES PATENT OFFICE.

EUPHRATES HARE, FARLINVILLE, KANSAS.

UPRIGHT DRILL.

SPECIFICATION forming part of Letters Patent No. 259,138, dated June 6,1882. Application filed April 26,1882. (No model.)

To all whom it may concern:

Be it known that I, EUPHRATES A. HARE, a citizen of the United States ofAmerica, residing at Farlinville, in the county of Linn and State ofKansas, have invented certain new and useful Improvements in UprightDrills; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing bad to the accompanying drawing, and to letters or figures ofreference marked thereon, which forms a part of this specification.

My invention relates to that class of machines for drilling or boringholes in metal or other hard substances in. which the drill-shaft isoperated vertically; and it consists in certain features hereinafterdescribed, and specifi cally set forth in the claims.

The drawing illustrates in perspective a machine constructed inaccordance with my invention.

Secured to a suitable base or foundation, A, is a standard, B, havingextensions or arms 0 O G O, in which are suitable bearings for twoupright shafts, D and F, the former being the drill-shaft andthe .latterthe operatingshaft. V

The drill-shaft is provided at its lower end with a suitable chuck, d,to hold the drill 01 and with collars d d to bear on the arm 0,

and prevent longitudinal movement of the 1 shaft, which, after passingthrough the bearing in the arm 0, is formed into a crank, d and abovethe crank is provided with a fly-wheel, d above which it is pointed tofit in-a step or end bearing, if such is desired, though it is notessential to the operation of the machine.

E represents a connecting-rod, the bearing 0 of which embraces the crankd of the shaft 1), and the bearing 6 of which embraces the crank f,formed on the operating-shaft F,which is provided with collars f f atthe bearing in arm 0 as shown. After passing through the bearing in thearm 0 the shaft F is formed into a lever, f disposed at substantially aright angle to the main portion of the shaft, so that by oscillating thelever back and forth the crank f is oscillated, and through the mediumof the connecting-rod Ecrank d is rotated, the fly-wheel (JP-operatingto carry the crank beyond the dead-center at each end of the movement ofthe-rod E, and thus by an oscillatory movement of the lever f thedrillshaft D is rotated.

A sliding table, G, is elevated, and serves to hold the work against thedrill by means of a treadle, I, and connecting-rod H in the usualmanner.

Having described my invention and its operation, what I claim as new,and desire to sesureby Letters Patent, is

1. The combination of the drill-shaft D, having the crank d fly-wheel dthe connectingrod E, and the shaft F, having the crankfand lever fsubstantially as shown and described.

2. The combination of shaft D, having the crank d fiy-wheel d rod E,shaft F, having crank f and lever f, with the adjustable table G,substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

EUPHRATES A. HARE.

Witnesses:

P. H. AYERS, W. L. SILsBY.

